--stderr=FILE tests were added to test/help-test as it is the one
doing most global option testing. Also, it was simplest to test
this new option using `notmuch help` command.
test_expect_success 'notmuch help tag' 'notmuch help tag'
test_expect_success 'notmuch --version' 'notmuch --version'
+test_begin_subtest "notmuch --stderr=stderr help %"
+notmuch --stderr=stderr help %
+test_expect_equal "$(cat stderr)" "
+Sorry, % is not a known command. There's not much I can do to help."
+
+test_begin_subtest "notmuch --stderr=- help %"
+test_expect_equal "$(notmuch --stderr=- help %)" "
+Sorry, % is not a known command. There's not much I can do to help."
+
test_done